Solid-State System for Copper Vapor Laser Excitation

The present paper describes an all-solid-state high voltage nanosecond pulse generator for pumping a copper vapor laser. The main feature of this device is using a high voltage switch composed of a stack of insulated gate bipolar transistors (IGBT), what makes it compacter and more cost effective th...

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Bibliographic Details
Published inEPE Journal Vol. 23; no. 4; pp. 51 - 54
Main Authors Yu Khomich, V., Malashin, M.V., Moshkunov, S.I., Rebrov, I.E., Shershunova, E.A.
Format Journal Article
LanguageEnglish
Published Routledge 01.12.2013
Subjects
generator
insulated gate bipolar transistor
laser
magnetic compression
semiconductor switch
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Summary:The present paper describes an all-solid-state high voltage nanosecond pulse generator for pumping a copper vapor laser. The main feature of this device is using a high voltage switch composed of a stack of insulated gate bipolar transistors (IGBT), what makes it compacter and more cost effective than traditional systems based on thyratrons and vacuum tubes. A fast transformer circuit provides highly synchronous on/off control of the IGBT stack. Two-stage magnetic pulse compressor is used to enhance the system efficiency. The developed laser pumping system generates current pulses with amplitude of 230 A and rise time of 30 ns at pulse repetition rate of 15 kHz. Average laser output power of 13 W was obtained under these pumping conditions.
ISSN:0939-8368
2376-9319
DOI:10.1080/09398368.2013.11463867